// For flags

CVE-2016-3841

kernel: use-after-free via crafted IPV6 sendmsg for raw / tcp / udp / l2tp sockets.

Severity Score

7.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The IPv6 stack in the Linux kernel before 4.3.3 mishandles options data, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call.

La pila IPv6 en el kernel de Linux en versiones anteriores a 4.3.3 no maneja adecuadamente datos de las opciones, lo que permite a usuarios locales obtener privilegios o provocar una denegación de servicio (uso después de liberación y caída de sistema) a través de una llamada al sistema sendmsg manipulada.

It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-03-30 CVE Reserved
  • 2016-08-06 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
  • CWE-416: Use After Free
  • CWE-667: Improper Locking
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Google
Search vendor "Google"
 Android
Search vendor "Google" for product "Android"
 6.0.1
Search vendor "Google" for product "Android" and version "6.0.1"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 < 3.2.75
Search vendor "Linux" for product "Linux Kernel" and version " < 3.2.75"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.3 < 3.12.52
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.3 < 3.12.52"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.13 < 3.16.35
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.13 < 3.16.35"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.17 < 3.18.25
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.17 < 3.18.25"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 3.19 < 4.1.15
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.1.15"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 4.2.8
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.2.8"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.3 < 4.3.3
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.3 < 4.3.3"
-
Affected